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Report No.
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Planning and implementation on transportation of large and heavy components of 1-MW spallation neutron source for Japan Proton Accelerator Research Complex (J-PARC)

Takada, Hiroshi   ; Kato, Takashi; Kaminaga, Masanori  ; Natsume, Hiroaki; Hoshino, Yoshihiro

We have planned an installation sequence of large structural components of the 1-MW spallation neutron source station with a high accuracy of an unit of mm with respect to the designed position and a tangential inclination of 1/1000 to horizontal level in Materials & Life Science Experimental Facility (MLF) under the Japan Proton Accelerator Research Complex (J-PARC). We have also carried out transportation and installation of some of structural components having a weight of heavier than 50 ton with a width of over 10 m and a height near 10 m and obtained perspectives to fulfill installation of whole components as designed sequence. In order to implement the surface transportation of such components to the construction site, we have carefully made a planning of the transportation, considering the structural strength of the bridge on the way to the site and temporal removal of structural interferences along the road.

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